Most AI budgets fail the same way: they price the subscription and stop there. The real cost lives elsewhere, and missing that is what turns a promising initiative into a year of quiet overspend.
The subscription is usually the smallest line
API and licensing costs are the easiest number to find, which is why they get disproportionate attention. Integration engineering, data preparation, change management, and ongoing maintenance are what actually determine success, and they’re often the larger cost once you account for them honestly.
Budget for a second pass, not just a launch
A large share of enterprise pilots never make it to meaningful production scale. Set aside budget for at least one full iteration cycle after the initial pilot, based on what actually happens in real use.
A simple framework
- Licensing and API costs: often 20-30% of the real total, not the majority.
- Integration and engineering: usually the single largest line item.
- Change management and training: frequently underfunded relative to how much it actually matters.
- Ongoing maintenance: a recurring cost, not a one-time expense.
Deployments that work, like the model behind Cognizant’s rollout, invest heavily in governance and workforce training, not just the AI capability itself.
See McKinsey’s own research on enterprise AI adoption.




